Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation, Stock Option Plan Activity (Details)

v3.22.1
Stock-based Compensation, Stock Option Plan Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Jan. 01, 2022
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Feb. 22, 2021
Nov. 05, 2020
Dec. 31, 2019
Ocuphire Stock Options [Abstract]              
Stock based compensation   $ 445 $ 494        
2020 Equity Incentive Plan [Member]              
Ocuphire Stock Options [Abstract]              
Common stock reserved for issuance (in shares)           1,000,000  
2020 Equity Incentive Plan [Member] | Maximum [Member]              
Ocuphire Stock Options [Abstract]              
Common stock reserved for issuance (in shares)           70,325  
2018 Equity Incentive Plan [Member]              
Ocuphire Stock Options [Abstract]              
Common stock reserved for issuance (in shares)   0         1,175,000
Inducement Plan [Member]              
Ocuphire Stock Options [Abstract]              
Common stock reserved for issuance (in shares)         325,258    
2020 Plan Evergreen Provision [Member]              
Ocuphire Stock Options [Abstract]              
Percentage of common stock shares outstanding   5.00%          
Number of shares added (in shares) 942,291            
2020 Plan Evergreen Provision [Member] | Minimum [Member]              
Ocuphire Stock Options [Abstract]              
Vesting period   6 months 6 months        
2020 Plan Evergreen Provision [Member] | Maximum [Member]              
Ocuphire Stock Options [Abstract]              
Period of shares reserved under plan   10 years          
Vesting period   48 months 48 months        
Ocuphire Stock Options [Member] | 2020 Plan Evergreen Provision [Member]              
Ocuphire Stock Options [Abstract]              
Granted (in shares)   552,305 41,800        
Stock based compensation   $ 417 $ 446        
Number of shares outstanding (in shares)   2,616,544   2,096,836      
Weighted average fair value per share of options granted (in dollars per share)   $ 2.29 $ 6.71